Form

(+)S+V(e/es)+O

(-)S+don't/doesn't+V+O

(?)Do/Does+S+V+O?

1. Công thức:

* be : am, is , are

* S : I , we , you , they

 +) S + V

 -) S + don't + +V

?)  Do + S+V ...? / (Wh) + do + S + V...?

* S :: She , he , it

+) S + V(s/es)

-) S + doesn't +V...

?) Does + S +V ...? / (Wh) + does +S + V...?

2. Dấu hiệu nhận biết 

- in the + buổi trong ngày

- once/ twice / three times ... a week / a month / a year

- always , usually , often , sometimes , rarely/ sedom , never , ...

1.An area of sand of small tones,beside the sea or a lake: beach
2.A natural flow of water that continues in a long line across land to the sea/ocean : river
3.A place where a stream or river falls from a high place,for example over a cliff or rock: waterfall
4.A large area of water that is surrounded by land : lake

1 ; Boring            2, clever          3,friendly       4, hard-working         5,confident       6,kind          7,shy          8,talkative           9,funny       10,creative

1has

2is-í

3is-is

Tất cả đều điền " is "

1.I have a black hair.

2.Mrs.Huyen has round and black eyes.

3.He has blue eyes.

4.She has chubby cheeks.

5.Miss Huong has a round face.

6.Miss Thanh has long legs.

1.sharpener

2.ruler

3.compass

4.bicycle

5.calculator

5.textbook

HOK TỐT

TL :

1. sharpener

2. ruler

3. compass

4. bicycle

5. calculator

8. textbook

Chúc bn hok tốt ~

sau mỗi dấu chấm là 1 câu

1-> jungle

2->river

3-> tôp

4-> còn lại 

IN MY FAMILY ,..............................................

There are four people in my family : my parents , my brother and I . My father is forty-four years old. He is a worker in Truong Hai company. He is a jovial man who always tell many funny stories to make us smile. My father s gardening very much as well as watching Tv programs. Un most men , my father s cooking and he cooks very well. My mother is at the same age as my father.My mothers is also a worker . She s cooking and traveling too, so whenever my parents have free time, we go some place interesting to relax . It's a great time. My brother is eight years old. He studies in primary school. He is interested in computer games and sports football .I am now in my final year at the secondary school and in my attempt to win a place at university , i am under a lot of study pressure .However , being the eldest child and the only daughter in my family I try to help with the household chores such as wash the dishes , mop the floor and so on . Members of our family have very close relationships with each other . We often share our feelings, and whenever problems come up , we discuss them frankly and find solutions quickly. In sum , My family is important to me .I love my family very much

Ta có:

n(n+2021)

=n( n+1+2020)

=n(n+1) + 2020n

Vì n và n+1 là 2 số nguyên liên tiếp

\(\Rightarrow n\left(n+1\right)⋮2\) 

mà 2020n cũng chia hết cho 2

=> n(n+1) + 2020n\(⋮2\)

hay n ( n + 2021 ) \(⋮2\)

hay n ( n + 2021 ) là số chẵn

n(n+2021)

=n(n+2020+1)

=n²+2020n+n

=n(n+1)+2020n

a minh quen

A.do not throw

B.not throw

C.throw

d.can not throw